Figure 2: Sample geometry and static XMCD images of magnetic domain configurations.

(a) Schematic diagram of the patterned multilayer square (S) embedded in the stripline, showing the direction of the applied current, i_ac and the coordinate convention used as well as the layer stack. The interface between the Py (Ni₈₀Fe₂₀) and the Co/Pd layers is defined as z=0 nm. (b) Typical in-plane Landau pattern measured in a 50 nm thick Py layer of a 3 × 3 μm square (30°, Ni L₃ edge). The arrows indicate the direction of the local magnetization. (c) Out-of-plane maze domain state in the [Co(0.3 nm)/Pd(0.9 nm)]₈ multilayer of a similar 3 μm × 3 μm square (normal incidence, Co L₃ edge) on the same sample. The direction of the out-of-plane magnetization is indicated. (d) Imprinted out-of-plane maze domain state in the Py layer with the vortex core visible as a white spot in the centre of the structure (highlighted by circle; normal incidence, Ni L₃ edge). Images c and d are taken from the same square. Image d was taken after the application of static magnetic fields large enough to move the vortex core and slightly alter the domain configuration as a result of the mutual interaction between the Py and the Co/Pd layers. The contrast of each image is adjusted for better visibility.